From any text identify a web url. File or ftp urls are not a part of the regex.

gubas2549-knju@force.com

select的操作

Description This is a simple Regular Expression for Mobile Numbers. Still needs more work. It currently supports the following formats: aaaaaaaaaa

select subdomain

find any standalone, non-white space character

It won't recognize if the local-part is just one character like t@somedomain.com

Your password should include at least 8 characters, uppercase and lowercase letters, numbers and at least one special character.

Regular exporession for Nr2000 validation

used to extract doi

find tag, but you can adapt to other tag

匹配图片链接

匹配md图片

Not Funny vs Funny - need to match for both cases

Regular expression to match all C style comments.

select 09|10

hi

reverses order when code is followed by comments (comments prepended with ## )

Python does not support conditionals using lookaround, even though Python does support lookaround outside conditionals. (?(?=regex) then|else) is illegal in python (?=regex)then|(?!regex)else - this works. madness details in the test strings